Unrated

Arbitrary Code Execution in Adobe ColdFusion (CVE-2026-48277)

IdentifiersCVE-2026-48277CWE-20

CVE-2026-48277 is a critical improper input validation vulnerability in Adobe ColdFusion. It affects ColdFusion 2025 Update 9 and earlier and ColdFusion 2023 Update 20 and earlier. According to the provided content, the flaw is remotely exploitable over the network, requires no privileges, and does not require user interaction. Successful exploitation can result in arbitrary code execution in the context of the current user. The specific vulnerable function or code path is not identified in the provided material.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation can allow an unauthenticated remote attacker to execute arbitrary code on an affected ColdFusion server in the context of the current user. The provided content indicates high confidentiality, integrity, and availability impact, with changed scope, meaning compromise may extend beyond the vulnerable component depending on deployment context. This can enable full compromise of the application instance, access to sensitive data handled by ColdFusion, modification of application content or configuration, and service disruption.

Mitigation

If you can’t patch tonight, do this now.

If immediate patching is not possible, apply Adobe ColdFusion security configuration and Lockdown Guide recommendations, update the ColdFusion JDK/JRE LTS version to the latest supported release, and use the latest MySQL Java connector. For JEE installations, Adobe recommends setting the documented JVM serial filter flag in the application server startup configuration: -Djdk.serialFilter=!org.mozilla.;!com.sun.syndication.;!org.apache.commons.beanutils.;!org.jgroups.;!com.sun.rowset.;!com.mysql.cj.jdbc.interceptors.;!org.apache.commons.collections.**. Monitor systems for unexpected behavior until patches are fully deployed.

Remediation

Patch, then assume compromise.

Upgrade Adobe ColdFusion 2025 to Update 10 or later and Adobe ColdFusion 2023 to Update 21 or later. Apply Adobe's official security update referenced in APSB26-68 and ensure all vendor security patches are installed. The provided content also recommends upgrading to the latest supported JDK/JRE and using the latest MySQL Java connector as part of the vendor's hardening guidance.

PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType

AdobeColdfusionapplication

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

ACTIVITY FEED

Recent activity

10 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

10 SOURCESView more in app

cyber security newsNews

Jul 1, 2026

Critical Multiple Adobe ColdFusion Vulnerabilities Enables Arbitrary Code Execution Attacks

A critical improper input validation vulnerability in Adobe ColdFusion that enables arbitrary code execution.

security weekNews

Jul 1, 2026

Adobe Patches Critical ColdFusion, Campaign Classic Vulnerabilities - SecurityWeek

A critical Adobe ColdFusion vulnerability that could lead to arbitrary code execution; Adobe says these flaws are rooted in unrestricted upload of dangerous file types, improper input validation, and path traversal weaknesses.

bleeping computerNews

Jul 1, 2026

Adobe patches seven max severity ColdFusion, Campaign flaws

A maximum-severity Adobe ColdFusion vulnerability that can allow unauthenticated remote code execution on unpatched systems.

cvefeed high severityNews

Jun 30, 2026

CVE-2026-48277 - ColdFusion | Improper Input Validation (CWE-20)

A critical improper input validation vulnerability in Adobe ColdFusion that can lead to arbitrary code execution without user interaction.

What this page doesn’t show

The version that knows your environment.

This page is what’s public. Mallory adds the parts that aren’t: which of your assets are affected, which adversaries are exploiting it right now, which detections to deploy, and what to do tonight.

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Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity5

Community discussion across Reddit, Mastodon, and other social sources.

EXTERNAL REFERENCES

MITRE CVE

cve.org · CVE-2026-48277

NVD

nvd.nist.gov/vuln/detail/CVE-2026-48277

MITRE CWE · CWE-20

cwe.mitre.org